AWS Elastic Kubernetes(EKS) comes with Fargate support now for running Kubernetes Pods, which gives benefits like no overhead of provisioning worker nodes, unlimited horizontal scaling for applications, better isolation at the pod level, per pod billing, etc. Talk focuses on details with cool demo.

1. PUNE

2. AWS EKS with
Fargate
Sanket Sudake, InfraCloud Technologies | 8th Feb, 2020

3. Sanket Sudake (@SanketSudake)
Technical Lead, InfraCloud Technologies
www.infracloud.io
Interests: Distributed Systems, Networking
I play around different compute solutions.
Kubernetes, Openstack, Bare metal, ARM,
Serverless, Unikernel

4. Compute Services for Containers

5. Container Services
Customization in
Kubernetes
Amazon EKS with Fargate
Kubernetes API Layer
on top of Fargate
Commitment towards
Kubernetes
Amazon EKS
Managed Kubernetes
Service on top of EC2
Node pools
Commitment
Amazon ECS
With solution for
containers orchestration
Launch Types
● Fargate
● EC2 Node Pool
with ECS agent
Inclination towards
containers
Docker support for EC2
Native packages with
Amazon Linux Extras

6. ECS Tasks
Container Definition
Task
Definition
Service
Cluster

7. ECS with EC2 Node Pool

8. Ecs Agent Ecs Agent Ecs Agent
Tasks Containers
AZ #1 AZ #3AZ #2
Tasks Containers Tasks Containers
Task Definition

9. ECS with Fargate

10. Tasks Containers
Tasks Containers
Task Definition
eni eni eni
Fargate Fargate Fargate
Tasks Containers

11. Kubernetes Primer

12. Controllers
API
Scheduler
ETCD
Kubelet
Kubelet
Kubelet
Carts #1
Carts #2
Payment #1
Wallet #1
Payment #2
Frontend #1
Master Worker #1
Worker #2
Worker #3

13. Elastic Kubernetes Service (EKS)
● Managed Kubernetes from AWS
● Integration with AWS
○ CloudWatch
○ AutoScaling
○ Identity and Access Management(IAM)
○ Virtual Private Cloud(VPC)
● Multiple AZ support

14. EKS with Fargate

15. EKS with Fargate
EKS
Control Plane
Fargate
Profile
Match
Create
Pod
Fargate
EC2 Node
Pool
Yes
No
Kubernetes
User

16. Fargate Profile Example
[
{
"name": "fp-default",
"podExecutionRoleARN": "arn:aws:iam::1234:role/eks-fargate-FargatePodExecutionRole",
"selectors": [
{
"namespace": "default"
},
{
"namespace": "kube-system"
}
],
"subnets": [
"subnet-01e1232a96c8206123",
"subnet-01e4560a52feecd123"
]
}
]

17. EKS with Fargate
Kubernetes
POD
Kubernetes
Node
Fargate
MicroVM

18. EKS with Fargate
Nginx
Nginx
Fargate 1
Fargate 2
K8s Service
Application
Load Balancer
eni
eni
Your
VPC

19. Creating EKS Cluster
$ eksctl create cluster -v 4
--name aws-eks-fargate
--region us-east-1
--fargate --alb-ingress-access
$ eksctl get cluster
--region us-east-1
--name aws-eks-fargate -o yaml

20. Demo

21. EKS Fargate: Why it’s Awesome ?
● Better Isolation at Pod level
● No need to manage/provision worker nodes
● POD level billing
● K8s cluster with 0 worker nodes
● No worries for horizontal autoscaling

22. EKS Fargate: Shortcomings!
● Support for Stateful workloads(coming soon)
● Limitations of ingress abstractions
● Native CNI plugins
● Native Storage plugins
● Node level monitoring solutions
● Daemon Sets
● Privileged Containers
● Taints and Toleration

23. Use cases
● Scale testing for your applications
● QA environments
● Burst in production workloads
● Low priority applications can be brought up when
required
● Applications which need per pod billing

24. Try this at home!
@SanketSudake

25. #1:
Minimum no of worker nodes
required for EKS with
Fargate to run workload?

26. #2:
Which controller we used to
manage provisioning of AWS
Application Load Balancer ?